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-   -   Conventional V-bottom hydronamics question.......... (https://www.offshoreonly.com/forums/general-boating-discussion/175826-conventional-v-bottom-hydronamics-question.html)

Enforcer2 01-01-2008 08:50 PM


Originally Posted by open72 (Post 2388751)
http://www.offshoreonly.com/forums/s...d.php?t=176114

52 ft long.... jackplates..:cool-smiley-011:



LOL:grinser010: I've actuall seen one continious jack plate or trips on a Deep Impact

Enforcer2 01-01-2008 08:55 PM

2 Attachment(s)
This picture is really what I am interested in knowing.

This is an Apace and I know there are obvious differences.

water pickups on transom (CAN get for Outboards), surface propellers( Chopper or Cleaver Props for outboards ), HD drives and tons of Torque (thIs I can't come up with :p:(.)

But the realtionship of where the prop shaft is to the notch and the v on the bottom is really what I am after.

SEE PICT and tell me what u think.

Thanks again everyone for the help....:cool::drink:...........Tony

MOBILEMERCMAN 01-01-2008 09:03 PM

Are you trying to compare apples to oranges?

Enforcer2 01-01-2008 09:35 PM

No...of course not but in relationship to the drive height and the notched transom how can I take advantage of my set up and how high should I go.

Do I run prop shafts even with bottom as before with the non notched transom or can I go as high as the above pict and actually see an increase in speed without sacrificing everything else.

It is nothing new for outboards to run much high er than your conventional stern drive boat: IE jack plates in conjuction with chopper props and low water pick ups.

MOBILEMERCMAN 01-01-2008 09:43 PM

Tony, Do you have a rear angle picture of the stern?
As you now that hull has been a round and dialed in again and again. In short you can only raise the drives as high as you can get the props to carry the boat. The faster the boat the less you have to carry. That picture is probably of a 100 mph plus, maybe 110 mph plus boat. Different things apply as speed increases. What works at 80 is not what's best for 100 and vis versa.

Enforcer2 01-01-2008 09:50 PM

gotcha, 100......would be nice:D


I will just have to do as you said ....a lot of trial and error.

Just thinking in comparison purposes. I have looked at some lighter..much lighter by about 7000lbs and noticed that they are running their lower units pretty much like the Apache. They are also 100mph boats thought, but they are outboards-hydrostreams.

And also not in rough water.

MOBILEMERCMAN 01-01-2008 10:00 PM

Tony, I posted on your thread I have the templates your asking about PM me with your address and I will send them to you. As far as your heights work from the homeland boat raise the centers 1 or 2 holes and see what you've got. If all is well raise them some more. Take lots of notes and calculate your slip, Have different props on hand. And the beat goes on.

Enforcer2 01-02-2008 09:06 AM

Thanks, really apreciate info:D. All PM u with address for templates

MOBILEMERCMAN 01-02-2008 11:16 AM

They are the same and both notched. If it was not notched the transom would be one plane and it would form a V to the lowest point.

Semper Fi 01-06-2008 09:33 PM


Originally Posted by open72 (Post 2388751)
http://www.offshoreonly.com/forums/s...d.php?t=176114

52 ft long.... jackplates..:cool-smiley-011:

That's alot of motors!!


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